hopkins



(No Model.)

G. Mv. & I. N. HOPKINS.

GAS ENGINE.

No. 284,851. Patented Sept.'l1, 1883.

/TV-V gfay, 5

l INVENTOR:

Jdff/ WITNESSES ATTORNEYS.

N4 PETERS. Pnowmrwgmpmr. wnhingmn. n.0

:UNITED STATES PATENT OFFICE.

GEORGE M. HOPKINS AND I. NEWTON HOPKINS, OF BROOKLYN, ASSIGNORS TO THEECONOMIC MOTOR COMPANY, OF NEV YORK, N. Y.

GAS-ENGINE.

SPECIFICATION forming part of Letters Patent No. 284,851, datedSeptember 11, 17883.

Application tiled May Q4, 1883.

- To @ZZ whom, it may concern.:

Beit known that we, GEORGE M. HOPKINS and I. NEWTON HOPKINS, both ofBrooklyn, in the county of Kings and State of N ew York,

have invented certain new and useful Improvements in Gas-Engines, ofwhich the following is a full, clear, and exact description.

Our invention consists in a double ypendent valve for covering theignition-opening, one

1o part of the valve being perforated and covered by the other, also, inthe combination, with the ignition-valve of a gas-engine, of anigniting-burner having a flared mouth, and provided with an inclineddeflector for spreading the iiame over the ignition-valve; also, in

the combination, with the burner, of a perforated protector forshielding the igniting-ame from blasts of air.

Reference is to be had to the accompanying drawings, in which Figure lis a side elevation of the cylinder of a gas-engine, partly yin section.Fig. 2 is a front elevation ofthe explosion-valve and igniting-burner.Figs. 3 and 4 show the parts ofthe double explosion-valve. 2 5 Fig. 5 isa rear elevation ofthe air-supply valve.

Like parts are designated by the same letters of reference in thedifferent gures of the drawings.

Over an opening, A, in the side of the cylinder B is secured the plateC, having the inclined inner surface, a, and conical ignitionaperture b.In the opening A 'and over the aperture b are suspended two flap-valves,c d, from the screw e, forming the common sup- `p`ort of both valves.The valve d is longer than the valvec, and is perforated with a smallhole, f, opposite the center of the ignition-aperture b'. Thisconstruction insures a division of the igniting-ilame as it enters thecylinder, and secures regular and quiet eXplosions. This device, whichwe call the ignition-valve,77 is provided with a protector, D, ofwire-gauze or perforated sheet metal, which is attached to the plate Cnear the top, and extends downwardbelow the ignition-valve, leaving aspace, in which is placed the upper end of the igniting-burner E. Theburner E is of the class known as the Bunsen burner.77 Its upper end ismade wide and flat, with its (No model.)

longer diameter parallel with the face of the 5o ignition-valve.Attached to the upper end of the burner is a curved deiiector, g, whichis inclined outward, and spreads the flame so as to cover more or less Of the face of the ignition-valve. ing the name, also prevents the iiamefrom being blown out by any blasts from the ignition-valve by receivingsuch blasts on its back and directing them away from the ame.

To insure an equal supply of air and gas to the engine-cylinder, we haveprovided the improved air-valveF and the gas-equalizing reservoir G. Thevalve F is provided with the A ordinary openings, 7L, for the admissionof air, and Vwith a flexible valve, t', covering the said 65 openings.The valvevl is held in place by the head of a tubular screw, j, passingthrough the seat of the valve z'. A metal ring, k, placed against theback of the valve e', is pressed by a bow-spring, l, connected with theend of the adjusting-screw-m by a swivel-joint. `The adj usting-screw mis fitted to an internal thread in the tubular screw j, andA is providedwith a milled head. By turning the screw m in or out the pressure of thevalvez upon its seat may be varied, and thus the supply of air can beregulated.

A sheet-metal reservoir, G, is connected with the gas-supply pipe a andgas-regulating valve o, the said valve o being in communication with thegas-check valvep, through which gas is drawn into the cylinder B. Thegas-reservoir G may be employed without any filling; but we have foundby experiment that gas may be economized to some extent bylling the reskervoir G with wool, hair, or other fibrous material, and when it is thusfilled a strainer, q, is placed over the discharge-opening ofthereservoir to prevent the escape of the filling]` Having thus describedour invention, vwe claim as new and desire to secure by LettersPatent- 1. In a gas-engine, the plate C, having the conical opening b,the valve d, provided with the aperture f, and the valve c, in combinaation, substantially as herein shown and described.

g' 2. In a gas-engine, an igniting-burner con-Y The detlector g, besidesspread- 55 mouth, the inclined defleetor g, and the per- 1o forzmtedprotector D, in combination with the ignition-Valve of a gas-engine, asherein specified.A

GEO. M. HOPKINS. I. NEWTON HOPKINS. Vitnesses:

O. SEDGWICK, B. G. UNDERWooD.

